Package gnu.trove.map
Interface TCharIntMap
- All Known Implementing Classes:
TCharIntHashMap
,TSynchronizedCharIntMap
,TUnmodifiableCharIntMap
public interface TCharIntMap
Interface for a primitive map of char keys and int values.
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Method Summary
Modifier and TypeMethodDescriptionint
adjustOrPutValue
(char key, int adjust_amount, int put_amount) Adjusts the primitive value mapped to the key if the key is present in the map.boolean
adjustValue
(char key, int amount) Adjusts the primitive value mapped to key.void
clear()
Empties the map.boolean
containsKey
(char key) Checks for the present of key in the keys of the map.boolean
containsValue
(int val) Checks for the presence of val in the values of the map.boolean
forEachEntry
(TCharIntProcedure procedure) Executes procedure for each key/value entry in the map.boolean
forEachKey
(TCharProcedure procedure) Executes procedure for each key in the map.boolean
forEachValue
(TIntProcedure procedure) Executes procedure for each value in the map.int
get
(char key) Retrieves the value for key.char
Returns the value that will be returned fromget(char)
orput(char, int)
if no entry exists for a given key.int
Returns the value that will be returned fromget(char)
orput(char, int)
if no entry exists for a given key.boolean
increment
(char key) Increments the primitive value mapped to key by 1boolean
isEmpty()
Returns true if this map contains no key-value mappings.iterator()
char[]
keys()
Returns the keys of the map as an array of char values.char[]
keys
(char[] array) Returns the keys of the map.keySet()
Returns the keys of the map as a TCharSetint
put
(char key, int value) Inserts a key/value pair into the map.void
putAll
(TCharIntMap map) Put all the entries from the given map into this map.void
Put all the entries from the given Map into this map.int
putIfAbsent
(char key, int value) Inserts a key/value pair into the map if the specified key is not already associated with a value.int
remove
(char key) Deletes a key/value pair from the map.boolean
retainEntries
(TCharIntProcedure procedure) Retains only those entries in the map for which the procedure returns a true value.int
size()
Returns an int value that is the number of elements in the map.void
transformValues
(TIntFunction function) Transform the values in this map using function.Returns the values of the map as a TIntCollectionint[]
values()
Returns the values of the map as an array of #e# values.int[]
values
(int[] array) Returns the values of the map using an existing array.
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Method Details
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getNoEntryKey
char getNoEntryKey()Returns the value that will be returned fromget(char)
orput(char, int)
if no entry exists for a given key. The default value is generally zero, but can be configured during construction of the collection.- Returns:
- the value that represents a null key in this collection.
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getNoEntryValue
int getNoEntryValue()Returns the value that will be returned fromget(char)
orput(char, int)
if no entry exists for a given key. The default value is generally zero, but can be configured during construction of the collection.- Returns:
- the value that represents a null value in this collection.
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put
int put(char key, int value) Inserts a key/value pair into the map.- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
getNoEntryValue()
).
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putIfAbsent
int putIfAbsent(char key, int value) Inserts a key/value pair into the map if the specified key is not already associated with a value.- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
getNoEntryValue()
).
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putAll
Put all the entries from the given Map into this map.- Parameters:
map
- The Map from which entries will be obtained to put into this map.
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putAll
Put all the entries from the given map into this map.- Parameters:
map
- The map from which entries will be obtained to put into this map.
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get
int get(char key) Retrieves the value for key.- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
getNoEntryValue()
).
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clear
void clear()Empties the map. -
isEmpty
boolean isEmpty()Returns true if this map contains no key-value mappings.- Returns:
- true if this map contains no key-value mappings
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remove
int remove(char key) Deletes a key/value pair from the map.- Parameters:
key
- anchar
value- Returns:
- the previous value associated with key, or the "no entry" value
if none was found (see
getNoEntryValue()
).
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size
int size()Returns an int value that is the number of elements in the map.- Returns:
- an int value that is the number of elements in the map.
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keySet
TCharSet keySet()Returns the keys of the map as a TCharSet- Returns:
- the keys of the map as a TCharSet
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keys
char[] keys()Returns the keys of the map as an array of char values.- Returns:
- the keys of the map as an array of char values.
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keys
char[] keys(char[] array) Returns the keys of the map.- Parameters:
array
- the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.- Returns:
- the keys of the map as an array.
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valueCollection
TIntCollection valueCollection()Returns the values of the map as a TIntCollection- Returns:
- the values of the map as a TIntCollection
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values
int[] values()Returns the values of the map as an array of #e# values.- Returns:
- the values of the map as an array of #e# values.
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values
int[] values(int[] array) Returns the values of the map using an existing array.- Parameters:
array
- the array into which the elements of the list are to be stored, if it is big enough; otherwise, a new array of the same type is allocated for this purpose.- Returns:
- the values of the map as an array of #e# values.
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containsValue
boolean containsValue(int val) Checks for the presence of val in the values of the map. -
containsKey
boolean containsKey(char key) Checks for the present of key in the keys of the map. -
iterator
TCharIntIterator iterator()- Returns:
- a TCharIntIterator with access to this map's keys and values
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forEachKey
Executes procedure for each key in the map.- Parameters:
procedure
- aTCharProcedure
value- Returns:
- false if the loop over the keys terminated because the procedure returned false for some key.
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forEachValue
Executes procedure for each value in the map.- Parameters:
procedure
- aT#F#Procedure
value- Returns:
- false if the loop over the values terminated because the procedure returned false for some value.
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forEachEntry
Executes procedure for each key/value entry in the map.- Parameters:
procedure
- aTOCharIntProcedure
value- Returns:
- false if the loop over the entries terminated because the procedure returned false for some entry.
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transformValues
Transform the values in this map using function.- Parameters:
function
- aTIntFunction
value
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retainEntries
Retains only those entries in the map for which the procedure returns a true value.- Parameters:
procedure
- determines which entries to keep- Returns:
- true if the map was modified.
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increment
boolean increment(char key) Increments the primitive value mapped to key by 1- Parameters:
key
- the key of the value to increment- Returns:
- true if a mapping was found and modified.
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adjustValue
boolean adjustValue(char key, int amount) Adjusts the primitive value mapped to key.- Parameters:
key
- the key of the value to incrementamount
- the amount to adjust the value by.- Returns:
- true if a mapping was found and modified.
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adjustOrPutValue
int adjustOrPutValue(char key, int adjust_amount, int put_amount) Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the put_amount is put in the map.- Parameters:
key
- the key of the value to incrementadjust_amount
- the amount to adjust the value byput_amount
- the value put into the map if the key is not present- Returns:
- the value present in the map after the adjustment or put operation
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